CVE-2025-38458— atm: clip: Fix NULL pointer dereference in vcc_sendmsg()
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I. Basic Information for CVE-2025-38458
Vulnerability Information
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Vulnerability Title
atm: clip: Fix NULL pointer dereference in vcc_sendmsg()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix NULL pointer dereference in vcc_sendmsg() atmarpd_dev_ops does not implement the send method, which may cause crash as bellow. BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: Oops: 0010 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc6-syzkaller-00346-g5723cc3450bc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000d3cf778 EFLAGS: 00010246 RAX: 1ffffffff1910dd1 RBX: 00000000000000c0 RCX: dffffc0000000000 RDX: ffffc9000dc82000 RSI: ffff88803e4c4640 RDI: ffff888052cd0000 RBP: ffffc9000d3cf8d0 R08: ffff888052c9143f R09: 1ffff1100a592287 R10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff92001a79f00 R13: ffff888052cd0000 R14: ffff88803e4c4640 R15: ffffffff8c886e88 FS: 00007fbc762566c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000041f1b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vcc_sendmsg+0xa10/0xc50 net/atm/common.c:644 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 ____sys_sendmsg+0x52d/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmmsg+0x227/0x430 net/socket.c:2709 __do_sys_sendmmsg net/socket.c:2736 [inline] __se_sys_sendmmsg net/socket.c:2733 [inline] __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2733 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于vcc_sendmsg中的空指针解引用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-38458
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Same Patch Batch · Linux · 2025-07-25 · 114 CVEs total
| CVE-2025-38424 | perf: Fix sample vs do_exit() | |
| CVE-2025-38438 | ASoC: SOF: Intel: hda: Use devm_kstrdup() to avoid memleak. | |
| CVE-2025-38437 | ksmbd: fix potential use-after-free in oplock/lease break ack | |
| CVE-2025-38436 | drm/scheduler: signal scheduled fence when kill job | |
| CVE-2025-38435 | riscv: vector: Fix context save/restore with xtheadvector | |
| CVE-2025-38434 | Revert "riscv: Define TASK_SIZE_MAX for __access_ok()" | |
| CVE-2025-38433 | riscv: fix runtime constant support for nommu kernels | |
| CVE-2025-38432 | net: netpoll: Initialize UDP checksum field before checksumming | |
| CVE-2025-38431 | smb: client: fix regression with native SMB symlinks | |
| CVE-2025-38430 | nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request | |
| CVE-2025-38429 | bus: mhi: ep: Update read pointer only after buffer is written | |
| CVE-2025-38428 | Input: ims-pcu - check record size in ims_pcu_flash_firmware() | |
| CVE-2025-38427 | video: screen_info: Relocate framebuffers behind PCI bridges | |
| CVE-2025-38425 | i2c: tegra: check msg length in SMBUS block read | |
| CVE-2025-38426 | drm/amdgpu: Add basic validation for RAS header | |
| CVE-2025-38413 | virtio-net: xsk: rx: fix the frame's length check | |
| CVE-2025-38416 | NFC: nci: uart: Set tty->disc_data only in success path | |
| CVE-2025-38415 | Squashfs: check return result of sb_min_blocksize | |
| CVE-2025-38414 | wifi: ath12k: fix GCC_GCC_PCIE_HOT_RST definition for WCN7850 | |
| CVE-2025-38417 | ice: fix eswitch code memory leak in reset scenario |
Showing top 20 of 114 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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